what does "IDLE DND xxxx" mean, after stating a TN. 1

[ARNOLD001]

I get a "IDLE DND xxxx" after stating a specific analog (500) set (this is the only set in the group)
The reason I'm looking into this is because, all incoming calls are beign re-dericted to the console when somone is on the line for the above TN. All other sets within the same card are O.K. I deleted the TN and Re-enabled it once, still no change. Hope this makes scence. I have a Meridian XT. Thanks for any advice

 

[Mpking]

It means the Do Not Disturb Feature is active.

My NTP (page 152, in X11 Maintence) lists that as abnormal. (LD 32, stat LSCU command)